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参数资料
| 型号： | DEMO9S08SG32 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 10/15页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR SG32/SH32 FAMILY |
| 标准包装： | 1 |
| 系列： | HCS08 |
| 类型： | MCU |
| 适用于相关产品： | MC9S08SH32，MC9S08SG32 |
| 所含物品： | 板，线缆，CD |
D E M O 9 S 0 8 S H 3 2 / S G 3 2
U S E R G U I D E
J U L Y
9 ,
2 0 0 7
Figure 2: PWR_SEL Option Header
1
2
3
Selects power input from USB-BDM
PWR_SEL
1
2
3
Selects power input from on-board regulator or J1
PWR_SEL
NOTE: Set PWR_SEL jumper to VB during application development. Use barrel connector
input (PWR) to support LIN functionality if needed.
Power from the integrated BDM is drawn from the USB bus and is limited to 500 mA . This
current limit accounts for the total current supplied over the USB cable to the BDM circuit, the
target board, and any connected circuitry. Current drain in excess of 500 mA will violate the
USB specification and will cause the USB bus to disconnect. This will cause the board to
exhibit power cycling where the board appears to turn-on then off continually. Damage to the
host PC or the target board may also result.
The on-board voltage regulator (VR1) accepts power input through a 2.0mm barrel connector
(PWR). Input voltage may range from +6V to +18V. The voltage regulator (VR1) provides a
+5V fixed output limited to 250mA. Over-temperature and over-current limit built into the
voltage regulator provides protection from excessive stress. The user should consider the
maximum output current limit of VR1 when attempting to power off-board circuitry through
connector J1.
If powered from the PWR connector, the integrated BDM may still be used to develop and
debug application code. Alternately, the board may be powered from the integrated BDM
while the LIN bus is powered from the PWR connector.
VX_EN
The VX_EN option header is a 2-pin jumper that connects or disconnects input J1-1 directly to
the target board, +5V voltage rail. J1-3 is directly connected to the ground plane. Use of this
feature requires a regulated +5V input power source. This power input is decoupled to
minimize noise but is not regulated. Care should be exercised when using this feature; no
protection is applied on this input and damage to the target board may result if over-driven.
Also, do not attempt to power the target board through this connector while also applying
power through the USB-Multilink BDM or the PWR connector; damage to the board may result.
Power may also be sourced to off-board circuitry through the J1 connector. The current
supplied from the USB bus or the on-board regulator limits current available to external
circuitry. Excessive current drain may damage the target board, the host PC USB hub, or the
on-board regulator. The figure below details the VX_EN header connections.
10
相关PDF资料 |
PDF描述 |
|---|---|
| DEMO9S08SG8 | BOARD DEMO FOR MC9S08SG FAM |
| DEMO9S08SV16 | BOARD DEMO FOR SV16 FAMILY |
| DEMO9S12XHY256 | BOARD DEMO FOR 9S12XHY256 |
| DEMOACKIT | KIT DEMO KIT FOR DC9S08A |
| DEMOEM | BOARD DEMO HARDWARE ONLY |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DEMO9S08SG32 | 制造商:Freescale Semiconductor 功能描述:MC9S08SH32 MC9S08SG32 Demonstration boa |
| DEMO9S08SG32AUTO | 功能描述:开发板和工具包 - S08 / S12 SG32 DEMO BOARD AUTO RoHS:否 产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor |
| DEMO9S08SG8 | 功能描述:开发板和工具包 - S08 / S12 DEMO BRD FOR 9S08SG8 WIT RoHS:否 产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor |
| DEMO9S08SG8AUTO | 功能描述:开发板和工具包 - S08 / S12 DEMO BRD FOR 9S08SG8 WIT RoHS:否 产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor |
| DEMO9S08SH32 | 功能描述:开发板和工具包 - S08 / S12 SH32 DEMO BOARD RoHS:否 产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor |
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